Question

find value of a^2+2ab+b^2,if a=69,b=31 ?

Answer 1

Answer:

this is an identity based question

identity: (a+b)^2=a^2+2ab+b^2

therefore ans will be (69+31)^2=100^2=10000

you can prove it like this

(a+b)(a+b)

open the brackets you will get a^2+2ab+b^2

Answer 2

Step-by-step explanation:

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